Cognomen Kroser (Kroser 
) , in all the world, is a very rare family name. The last name Kroser is characteristic of Australia, where it is a very rare surname, Canada, where it is an extremely rare surname, and Argentina. Measured by absolute frequency, it is the most numerous in Australia, the United States, and Canada.
| VARIANT | COUNTRY |
|---|---|
| Kroser | Australia, Canada, United States, South Africa, Argentina |